That was an interesting 5 minutes read through the last few posts. As an end user the thought wouldn't even pop into my head that there might be a debate about how well a £1700+ computer (X5000) could play video in 4K, let alone 720p or 1080p. Frankly, I wouldn't expect there to be an issue on the cheaper A1222 either, although maybe not 4k. Fortunately I don't have any 4k screens but that won't be the situation forever. Windows is already a major pain when it comes to mixed scaling so it had occurred to me to get a 4k monitor. Of course that alone doesn't mean I need to play video at that resolution of course!

I was going to pull the trigger on a Tabor the minute they were available because I've always wanted an OS4 system but am not prepared to shell out for the X5000. This thread has certainly made me question that.